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<title><![CDATA[BoardTracker - Mechanical]]></title>
<link>http://www.boardtracker.com/all/1469/1/</link>
<description><![CDATA[Latest threads from "Mechanical"]]></description>
<pubDate>Sat, 05 Jul 2008 23:25:50 GMT</pubDate>
<lastBuildDate>Sat, 05 Jul 2008 23:25:50 GMT</lastBuildDate>
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<title><![CDATA[Stress in rotating ring segment...]]></title>
<link>http://www.boardtracker.com/rss/thread/56703390</link>
<description><![CDATA[Hi guys. I was wondering if any of you happened to know the equation for the radial and tangential stress developed across a segment of a ring in rotation. I have been looking through countless ma...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56703390</guid>
<pubDate>Wed, 12 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[deflection of a steeped shaft...]]></title>
<link>http://www.boardtracker.com/rss/thread/56703395</link>
<description><![CDATA[hello everyone. i want to know that can we treat stepped shaft as a beam while finding the deflection. if yes then how do we find the deflection of a stepped shaft made of cs1030 steel. its first...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56703395</guid>
<pubDate>Tue, 11 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Need info about online course...]]></title>
<link>http://www.boardtracker.com/rss/thread/56627200</link>
<description><![CDATA[Hi, I am taking FINITE ELEMENT METHOD and NUMERICAL METHOD in this semester of my college and I am looking for any ONLINE COURSE on them, if available, at reasonable price (or student price). If an...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56627200</guid>
<pubDate>Sat, 08 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Comsol Modelling Help...]]></title>
<link>http://www.boardtracker.com/rss/thread/56627205</link>
<description><![CDATA[Hi, We have imported a CAD drawing into Comsol and are setting up a sphere in order to observe the sound radiation pattern of the imported object when excited at a point. The problem is Comsol does...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56627205</guid>
<pubDate>Fri, 07 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Aircraft materials, please help!...]]></title>
<link>http://www.boardtracker.com/rss/thread/56587106</link>
<description><![CDATA[Pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeee I have to present a paper on Aircraft materials and I have only one month left to prepare............... I've spli...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56587106</guid>
<pubDate>Fri, 07 Sep 2007 00:00:00 GMT</pubDate>
</item>
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<title><![CDATA[converging diverging nozzle...]]></title>
<link>http://www.boardtracker.com/rss/thread/56587110</link>
<description><![CDATA[i just started reading about nozzles and turbines in my semester course. i went through converging diverging nozzles. for achieving a supersonic flow, a converging diverging nozzle is used. now a conv...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56587110</guid>
<pubDate>Fri, 07 Sep 2007 00:00:00 GMT</pubDate>
</item>
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<title><![CDATA[Nemark's method. Question...]]></title>
<link>http://www.boardtracker.com/rss/thread/56587115</link>
<description><![CDATA[Newmark's method deals with second order differential equation in the time domain. The equation is of the type M*xddot + C*xdot + K*x = F(t) (1) Now suppose to have a GENERIC system: A*xdd...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56587115</guid>
<pubDate>Thu, 06 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Hyperdrive feasibility...]]></title>
<link>http://www.boardtracker.com/rss/thread/56703400</link>
<description><![CDATA[Ok i send this topic only for information about that topic. If some one have information and plan about that just post your reply. For Instance I got something interesting about that topic. A german h...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56703400</guid>
<pubDate>Thu, 06 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Question re: Aperture sizes for Resistance to Airflow...]]></title>
<link>http://www.boardtracker.com/rss/thread/56542516</link>
<description><![CDATA[Hi, I'm a final year Biomed. Eng. student currently working with a team on a project investigating Threshold Responses to Inspiratory loads, and their relation to sleep apnea. The key to this st...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56542516</guid>
<pubDate>Wed, 05 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Carbon Steel Pipes to API 5L Grade B Standard Weight...]]></title>
<link>http://www.boardtracker.com/rss/thread/56542520</link>
<description><![CDATA[Greetings!! This is for a Chilled water piping project (1000mm dia max). We are procuring pipes from SEAH Korea, from 250mm to 1000mm. And for calculations for support, load, thrust, etc, i need the ...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56542520</guid>
<pubDate>Wed, 05 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Space shuttle...]]></title>
<link>http://www.boardtracker.com/rss/thread/56542537</link>
<description><![CDATA[Hi I would like to have the answers of a few basic questions. I would like to know that in a space shuttle, how is the oxygen level maintained? How does a space shuttle enter in to the space? Does i...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56542537</guid>
<pubDate>Tue, 04 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[Help - Heat Pipe Math Modeling...]]></title>
<link>http://www.boardtracker.com/rss/thread/56542543</link>
<description><![CDATA[Hello! i've been thinking, how can i get start modeling a heat pipe. At least a conceptual approach . it would be very helpfull ir someone here post any bibliography. thanks!...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56542543</guid>
<pubDate>Mon, 03 Sep 2007 00:00:00 GMT</pubDate>
</item>
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<title><![CDATA[Gasoline stoichiometry calculation...]]></title>
<link>http://www.boardtracker.com/rss/thread/56542531</link>
<description><![CDATA[I'm trying to figure out where the often cited 14.7:1 stoich a/f ratio for gasoline comes from. I've always thought it was calculated from a primary reference fuel containing some mixture of iso-octa...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56542531</guid>
<pubDate>Mon, 03 Sep 2007 00:00:00 GMT</pubDate>
</item>
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<title><![CDATA[Best efficiency DC or AC motors?...]]></title>
<link>http://www.boardtracker.com/rss/thread/56542525</link>
<description><![CDATA[I was thinking in the last weeks about electric cars and thinking about a DIY project in a future. Here's the problem, which motor is best for an electricar? Which have the best efficiency, torque ...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56542525</guid>
<pubDate>Mon, 03 Sep 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[least fuel consumed from point A to B with no time constraint...]]></title>
<link>http://www.boardtracker.com/rss/thread/56496387</link>
<description><![CDATA[Let's assume we have a generic, standard design ICE car, except that transmission is CVT (continously variable) and can be popped into neutral, since this simplifies the problem. Assume car travels...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56496387</guid>
<pubDate>Sun, 02 Sep 2007 00:00:00 GMT</pubDate>
</item>
<item>
<title><![CDATA[airframe dynamics of a model rocket roll control system?...]]></title>
<link>http://www.boardtracker.com/rss/thread/56496390</link>
<description><![CDATA[Hello, I am hoping to build a model rocket with a roll control system for my senior project. Since the idea of building or obtaining a wind tunnel seems infeasible I will need to theoretically cal...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56496390</guid>
<pubDate>Sat, 01 Sep 2007 00:00:00 GMT</pubDate>
</item>
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<title><![CDATA[Aerodynamics: Mathematically Modeling the Flight of an Object...]]></title>
<link>http://www.boardtracker.com/rss/thread/56454786</link>
<description><![CDATA[1. The problem statement, all variables and given/known data Had our choice for a topic for a project, and I picked math modeling. My Original Research Question: In what way can a playing card b...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56454786</guid>
<pubDate>Sat, 01 Sep 2007 00:00:00 GMT</pubDate>
</item>
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<title><![CDATA[Diagonal or Mixed Flow Compressors...]]></title>
<link>http://www.boardtracker.com/rss/thread/56454791</link>
<description><![CDATA[Tell me all about Diagonal or Mixed Flow Fans and Compressors Are they more efficient than an axial fan with a 90 degree elbow discharge and stator vanes to straighten the flow? How do the pres...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56454791</guid>
<pubDate>Fri, 31 Aug 2007 00:00:00 GMT</pubDate>
</item>
<item>
<title><![CDATA[Need help in designing cylindrical robot arm...]]></title>
<link>http://www.boardtracker.com/rss/thread/56454789</link>
<description><![CDATA[I'm currently designing the mechanism for a basic cylindrical robot arm. It must be capable of lifting max 2kg of item. The robot arm looks like ST Robotic R19 model. It moves in X and Z direction plu...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56454789</guid>
<pubDate>Fri, 31 Aug 2007 00:00:00 GMT</pubDate>
</item>
<item>
<title><![CDATA[Formulation of Flow generated by a cylinder...]]></title>
<link>http://www.boardtracker.com/rss/thread/56454794</link>
<description><![CDATA[Hi All; I try to find the frictional torque on a high speed spindle. There is no flow past the cylinder, the flow is generated due the rotation of the cylinder. I read book of Munson and it is wri...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56454794</guid>
<pubDate>Thu, 30 Aug 2007 00:00:00 GMT</pubDate>
</item>
<item>
<title><![CDATA[Hose internal Coil...]]></title>
<link>http://www.boardtracker.com/rss/thread/56400447</link>
<description><![CDATA[Hi, While designing a hose assembly, I came across a part called Hose internal Coil (Material –CRES). Why is Hose internal coil provided inside the hose assembly? For Hose protection (against abr...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56400447</guid>
<pubDate>Thu, 30 Aug 2007 00:00:00 GMT</pubDate>
</item>
<item>
<title><![CDATA[Tension in a wire rope...]]></title>
<link>http://www.boardtracker.com/rss/thread/56400449</link>
<description><![CDATA[A wire rope is stretched horizontally between two opposing hydraulic cylinders. One cylinder pulls to the left with a force of 100 pounds, the opposing cylinder pulls to the right with a force of 150...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56400449</guid>
<pubDate>Wed, 29 Aug 2007 00:00:00 GMT</pubDate>
</item>
<item>
<title><![CDATA[Rolls Royce Trent Engine Technology...]]></title>
<link>http://www.boardtracker.com/rss/thread/56351024</link>
<description><![CDATA[I came across a nice presentation. http://www.msm.cam.ac.uk/phase-trans...ent1/index.htm [http://www.msm.cam.ac.uk/phase-trans/mphil/Trent1/index.htm]> It contains a nice overview and also some ...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56351024</guid>
<pubDate>Tue, 28 Aug 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[[COMSOL] Cantilever Beam help...]]></title>
<link>http://www.boardtracker.com/rss/thread/56351031</link>
<description><![CDATA[Hi everyone, I've just started to use COMSOL for the study of a simple cantilever beam and I'm facing some problems while calculating the eigenfrequencies and the frequency-response. I use the 3...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56351031</guid>
<pubDate>Tue, 28 Aug 2007 00:00:00 GMT</pubDate>
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<title><![CDATA[head loss due to sudden expansion...]]></title>
<link>http://www.boardtracker.com/rss/thread/56351026</link>
<description><![CDATA[Hi all, I'm sure a lot of you know about the head loss due to sudden expansion: Hl = (1/2g)*(v1-v2)^2 This equation can be derived from Bernoulli, continuity and momentum balans equations. T...]]></description>
<guid isPermaLink="true">http://www.boardtracker.com/rss/thread/56351026</guid>
<pubDate>Tue, 28 Aug 2007 00:00:00 GMT</pubDate>
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